DAC8532: Dual-Channel, Low-Power, 16-Bit, Serial-Input ... - dreamm

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ABSOLUTE MAXIMUM RATINGS (1) V DD to GND ........................................................................... –0.3V to +6V Digital Input Voltage to GND ................................. –0.3V to +V DD + 0.3V V OUTA or V OUTB to GND .......................................... –0.3V to +V DD + 0.3V Operating Temperature Range ...................................... –40°C to +105°C Storage Temperature Range ......................................... –65°C to +150°C Junction Temperature Range (T J max) ........................................ +150°C Power Dissipation ........................................................ (T J max — T A )/θ JA θ JA Thermal Impedance ......................................................... 206°C/W θ JC Thermal Impedance .......................................................... 44°C/W Lead Temperature, Soldering: Vapor Phase (60s) ............................................................... +215°C Infrared (15s) ........................................................................ +220°C NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION SPECIFICATION PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE-LEAD DESIGNATOR (1) RANGE MARKING NUMBER MEDIA, QUANTITY DAC8532 MSOP-8 DGK –40°C to +105°C D32E DAC8532IDGK Tube, 80 " " " " DAC8532IDGKR Tape and Reel, 2500 NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com. ELECTRICAL CHARACTERISTICS V DD = +2.7V to +5.5V. –40°C to +105°C, unless otherwise specified. DAC8532 PARAMETER CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE (1) Resolution 16 Bits Relative Accuracy ±0.0987 % of FSR Differential Nonlinearity 16-Bit Monotonic ±1 LSB Zero-Scale Error +5 +25 mV Full-Scale Error –0.15 –1.0 % of FSR Gain Error ±1.0 % of FSR Zero-Scale Error Drift ±20 µV/°C Gain Temperature Coefficient ±5 ppm of FSR/°C Channel-to-Channel Matching R L = 2kΩ, C L = 200pF 15 mV PSRR 0.75 mV/V OUTPUT CHARACTERISTICS (2) Output Voltage Range 0 V REF V Output Voltage Settling Time To ±0.003% FSR 0200 H to FD00 H 8 10 µs R L = 2kΩ; 0pF < C L < 200pF R L = 2kΩ; C L = 500pF 12 µs Slew Rate 1 V/µs Capacitive Load Stability R L = ∞ 470 pF R L = 2kΩ 1000 pF Code Change Glitch Impulse 1LSB Change Around Major Carry 20 nV-s Digital Feedthrough 0.5 nV-s DC Crosstalk 0.25 LSB AC Crosstalk –100 –96 dB DC Output Impedance 1 Ω Short-Circuit Current V DD = +5V 50 mA V DD = +3V 20 mA Power-Up Time Coming Out of Power-Down Mode V DD = +5V 2.5 µs Coming Out of Power-Down Mode V DD = +3V 5 µs AC PERFORMANCE BW = 20kHz, V DD = 5V F OUT = 1kHz, 1st 19 Harmonics Removed SNR 94 dB THD 67 dB SFDR 69 dB SINAD 65 dB 2 www.ti.com DAC8532 SBAS246A
ELECTRICAL CHARACTERISTICS (Cont.) V DD = +2.7V to +5.5V. –40°C to +105°C, unless otherwise specified. DAC8532 PARAMETER CONDITIONS MIN TYP MAX UNITS REFERENCE INPUT Reference Current V REF = V DD = +5V 67 90 µA V REF = V DD = +3V 40 54 µA Reference Input Range 0 V DD V Reference Input Impedance 75 kΩ LOGIC INPUTS (2) Input Current ±1 µA V IN L, Input LOW Voltage V DD = +5V 0.8 V V IN L, Input LOW Voltage V DD = +3V 0.6 V V IN H, Input HIGH Voltage V DD = +5V 2.4 V V IN H, Input HIGH Voltage V DD = +3V 2.1 V Pin Capacitance 3 pF POWER REQUIREMENTS V DD 2.7 5.5 V I DD (normal mode) DAC Active and Excluding Load Current V DD = +3.6V to +5.5V V IH = V DD and V IL = GND 500 800 µA V DD = +2.7V to +3.6V V IH = V DD and V IL = GND 450 750 µA I DD (all power-down modes) V DD = +3.6V to +5.5V V IH = V DD and V IL = GND 0.2 1 µA V DD = +2.7V to +3.6V V IH = V DD and V IL = GND 0.05 1 µA POWER EFFICIENCY I OUT /I DD I LOAD = 2mA, V DD = +5V 89 % TEMPERATURE RANGE Specified Performance –40 +105 °C NOTES: (1) Linearity calculated using a reduced code range of 485 to 64714; output unloaded. (2) Ensured by design and characterization, not production tested. PIN CONFIGURATION Top View MSOP-8 PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 V DD Power supply input, +2.7V to +5.5V. 2 V REF Reference voltage input. 3 V OUT B Analog output voltage from DAC B. 4 V OUT A Analog output voltage from DAC A. 5 SYNC Level triggered SYNC input (active LOW). This is the frame synchronization signal for the input data. When SYNC goes LOW, it enables the input shift register and data is transferred on the falling edge of SCLK. The action specified by the 8-bit control byte and 16-bit data word is executed following the 24th falling SCLK clock edge (unless SYNC is taken HIGH before this edge in which case the rising edge of SYNC acts as an interrupt and the write sequence is ignored by the DAC8532). 6 SCLK Serial Clock Input. Data can be transferred at rates up to 30 MHz at 5V. 7 D IN Serial Data Input. Data is clocked into the 24-bit input shift register on each falling edge of the serial clock input. 8 GND Ground reference point for all circuitry on the part. V DD V REF V OUT B V OUT A 1 2 3 4 DAC8532 8 7 6 5 GND D IN SCLK SYNC DAC8532 SBAS246A www.ti.com 3
Page 1: DAC8532 SBAS246A - DECEMBER 2001 -
Page 5 and 6: TYPICAL CHARACTERISTICS At T A = +2
Page 7 and 8: TYPICAL CHARACTERISTICS (Cont.) At
Page 9 and 10: TYPICAL CHARACTERISTICS (Cont.) At
Page 11 and 12: INPUT SHIFT REGISTER The input shif
Page 13 and 14: OPERATION EXAMPLES Example 1: Write
Page 15 and 16: DRIVING RESISTIVE AND CAPACITIVE LO
Page 17 and 18: PACKAGE DRAWING DGK (R-PDSO-G8) PLA
Page 20: IMPORTANT NOTICE Texas Instruments

DAC8532: Dual-Channel, Low-Power, 16-Bit, Serial-Input ... - dreamm

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